Dallas Cowboys owner Jerry Jones is adamant that he is not worried about head coach Jason Garrett's contract situation.

Garrett's contract runs out at the end of the season, but the 48-year-old has guided his side to the playoffs for the first time since the 2009 campaign, and they have also advanced to the divisional round after beating the Detroit Lions.

However, Jones has insisted that he is happy to wait to offer Garrett a new deal, even with several alluring coaching vacancies across the NFL available to the former quarterback should he choose not to sign a new deal with the Cowboys.

Jones told ESPN: "I just didn't do it and didn't want to - that is, extend the contract. Jason's been coaching under the same contract actually for about seven years.

"I've got tremendous confidence in Jason Garrett's growth and how he has evolved as head coach. And so that I felt when the time is right - I didn't think it was right to start the season. And so I felt when the time is right we'll sit down and extend his contract.

"We've paid a price and always do for a coach that's learning. Just think, I'll give you one example, Jimmy Johnson. We won one football game in his first year being a pro football head coach. So coaches grow, coaches evolve. I'm glad that we're gonna get a chance to have the benefit of the experience and the growth that Jason Garrett has shown."

Garrett had led the Cowboys to three consecutive seasons with an 8-8 record before guiding his team to a 12-4 record in the current campaign.